FR2377431A1 - Open cell thermoplastics e.g. for filters and noise dampers - made by compressing thermoplastics with polar organic liq. and heating - Google Patents

Open cell thermoplastics e.g. for filters and noise dampers - made by compressing thermoplastics with polar organic liq. and heating

Info

Publication number
FR2377431A1
FR2377431A1 FR7700750A FR7700750A FR2377431A1 FR 2377431 A1 FR2377431 A1 FR 2377431A1 FR 7700750 A FR7700750 A FR 7700750A FR 7700750 A FR7700750 A FR 7700750A FR 2377431 A1 FR2377431 A1 FR 2377431A1
Authority
FR
France
Prior art keywords
thermoplastics
compressing
filters
liq
heating
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
FR7700750A
Other languages
French (fr)
Other versions
FR2377431B1 (en
Inventor
Anatoly Ivanovich Larionov
Jury Andreevich Kuli Tsvetkova
Nina Petrovna Tsvetkova
Klavdia Alexandrovna Rychagova
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
INST SINT SMOL
Original Assignee
INST SINT SMOL
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by INST SINT SMOL filed Critical INST SINT SMOL
Priority to FR7700750A priority Critical patent/FR2377431A1/en
Publication of FR2377431A1 publication Critical patent/FR2377431A1/en
Application granted granted Critical
Publication of FR2377431B1 publication Critical patent/FR2377431B1/fr
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/24—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof by surface fusion and bonding of particles to form voids, e.g. sintering

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Treatments Of Macromolecular Shaped Articles (AREA)

Abstract

Prodn. of open-celled polymer materials comprises (i) compressing a powdery thermoplastic polymer (I), under 10-250 kp/cm2 applied pressure, in the presence of 5-30 (10-20 wt. % w.r.t. (I), of an organic polar liq. (II), the b.pt. of which lies 5-20 degrees C above the softening point of (I), and then (ii) heat-treating the compsn. at the softening point of (I) at a heating rate of 20-190(30-80) degrees C/min. Prods. can be used as (a) gas-permeable insulators and constructional materials, (b) as pneumatic noise dampers in machine-building, (c) as pressure mixers in purifying waste waters and in water tank aeration; (d) as carriers for liq. extractants in metal extn.; (e) as filters for gases and liquids, including aggressive liquids, bio-masses, blood, cellulose ester dopes, lacquers, enamels and polyurethane solns. The prods. allow filtration at high pressures, repeated sterilisation and regeneration with solvents, acids and alkali.
FR7700750A 1977-01-12 1977-01-12 Open cell thermoplastics e.g. for filters and noise dampers - made by compressing thermoplastics with polar organic liq. and heating Granted FR2377431A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7700750A FR2377431A1 (en) 1977-01-12 1977-01-12 Open cell thermoplastics e.g. for filters and noise dampers - made by compressing thermoplastics with polar organic liq. and heating

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7700750A FR2377431A1 (en) 1977-01-12 1977-01-12 Open cell thermoplastics e.g. for filters and noise dampers - made by compressing thermoplastics with polar organic liq. and heating

Publications (2)

Publication Number Publication Date
FR2377431A1 true FR2377431A1 (en) 1978-08-11
FR2377431B1 FR2377431B1 (en) 1979-04-20

Family

ID=9185396

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7700750A Granted FR2377431A1 (en) 1977-01-12 1977-01-12 Open cell thermoplastics e.g. for filters and noise dampers - made by compressing thermoplastics with polar organic liq. and heating

Country Status (1)

Country Link
FR (1) FR2377431A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0147335A2 (en) * 1984-01-02 1985-07-03 LABORATOIRES D'HYGIENE ET DE DIETETIQUE L.H.D. Société Anonyme dite: Pharmaceutical inert matrix made of polycaprolactone, and method of preparing an oral galenic form
WO1994004602A1 (en) * 1992-08-11 1994-03-03 Nauchno-Kommercheskoye Predpriyatiye 'polimerplast' Composition for obtaining foamed polyvinylchloride material and method of obtaining it

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NEANT *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0147335A2 (en) * 1984-01-02 1985-07-03 LABORATOIRES D'HYGIENE ET DE DIETETIQUE L.H.D. Société Anonyme dite: Pharmaceutical inert matrix made of polycaprolactone, and method of preparing an oral galenic form
FR2557459A1 (en) * 1984-01-02 1985-07-05 Lhd Lab Hygiene Dietetique POLYCAPROLACTONE INERT MATRIX FOR ORAL ADMINISTRATION OF A MEDICAMENT, AND METHOD OF PREPARING THE GALENIC FORM COMPRISING THE MATRIX
EP0147335A3 (en) * 1984-01-02 1985-07-31 Laboratoires D'hygiene Et De Dietetique L.H.D. Societe Anonyme Dite: Pharmaceutical inert matrix made of polycaprolactone, and method of preparing an oral galenic form
US4629624A (en) * 1984-01-02 1986-12-16 Laboratoire D'hygiene Et De Dietetique (L.H.D.) Inert matrix based on polycaprolactone for the oral administration of a drug, and method for the preparation of the galenic form comprising this matrix
WO1994004602A1 (en) * 1992-08-11 1994-03-03 Nauchno-Kommercheskoye Predpriyatiye 'polimerplast' Composition for obtaining foamed polyvinylchloride material and method of obtaining it

Also Published As

Publication number Publication date
FR2377431B1 (en) 1979-04-20

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Legal Events

Date Code Title Description
ST Notification of lapse